So Logos has two editions of the magisterial Joüon/Muraoka Hebrew Grammar: a fourth edition (pub. 2003) and a revised edition (pub. 2006). What's confusing to me is if/how these digital editions match up with the print editions, which are, as far as I am aware: 1st edition (pub. 1991 in two volumes), 2nd edition (pub. 2006 a single volume), and then a third version that I am unsure whether is just a reprint or a new edition (pub. 2011).
The publication dates on Logos.com seem to indicate that the "revised edition" is newer, but the descriptions on both make this really unclear. Can anyone confirm which print editions each of these correspond to and which is more recent?
Many thanks,
Ethan